Verilink PRISM 4051 (34-00253.2) Product Manual - Manual (Page 15)

Unit Configuration 9
SUPV Port Rate
Positions S2-5
and 2-6 set the
bit rate for the
network
management
system as shown
in Table 2-12.
NMS Port Rate
Positions S2-7
and 2-8 set the
bit rate for the
network
management
system as shown
in Table 2-13.
Configuration
Switch S3
Switch S3
(Figure 2-4) is
reserved for
future expansion,
with the
exception of
S3-8, which is
used to force
download mode.
Force Download Mode
Switch S3-8 is used to Force
Download Mode as shown in
Table 2-14. For download bit-rate
information refer to step 7 of
PC Setup on page 39.
Address Switch S4 Switch S4 sets the unit
address. When using the
4051 with an 8100A Site
Controller, each element in a
group must have a unique
unit address. As many as 50
units (with addresses from 1
to 50) can exist in a group.
If the unit is not connected to a site controller, the NMS unit address should be left
at the factory default setting of 1 where Position 1 is Up and all other positions are
Down (see Figure 2-5).
Table 2-12 SUPV Port Rate
NMS Port Rate S2-5 S2-6
19.2 kbps Down Down
1.2 kbps Down Up
2.4 kbps Up Down
9.6 kbps Up Up
Table 2-13 NMS Port Rate
NMS Port Rate S2-7 S2-8
19.2 kbps Down Down
1.2 kbps Down Up
2.4 kbps Up Down
9.6 kbps Up Up
Figure 2-4 Switch S3
7 6 5 4 3 2 1
Do
wn
Up
8
Un
u
se
d
Un
u
se
d
Un
u
se
d
Un
u
se
d
F
o
rc
e Do
wn
lo
a
d
Mo
d
e
Un
u
se
d
Un
u
se
d
Un
u
se
d
Switch
S3
Table 2-14 Force Download Mode
Mode S3-8
Normal Operation Down
Begin Flash Download Up
LSB MSB Binary values
1 2 4 8 16 32 64 128
0 0 0 0 0 0 0 0
Figure 2-5 Switch S4
7 6 5 4 3 2 1
Do
wn
Up
8
Switch
S4